Kohler Curtis AC F2-T User Manual

7 — DIAGNOSTICS AND TROUBLESHOOTING
Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022 Return to TOC
pg. 216
FLASH
CODE
FAULT NAME
(Curtis Integrated Toolkit™)
POSSIBLE CAUSES SET/CLEAR CONDITIONS FAULT ACTIONS
3-2
0x32
EM Brake Driver Fault
EM_Brake_Driver_fault
0x2320
Fault Type(s):
1 = Driver current exceeded
hardware limits.
2 = Driver current exceeded
congured over-current limits.
3 = Driver commanded PWM
active, using diagnostic
pulses. Voltage measured
high, should be low. Typically
caused by driver failure, or
driver pin short to high.
4 = Driver commanded PWM
active, using diagnostic pulses.
Voltage measured low, should
be high. Either open circuit, or
driver pin short to ground.
5 = Driver commanded PWM is
0, and voltage measured low
(should be high). Either open
circuit, or driver pin short
to ground.
7 = Driver undercurrent -
Monitored current is below
undercurrent threshold.
Fault types 1-2 are always checked.
Fault types 3-5 are only checked
if driver checks are enabled.
1. Open or short on driver load.
2. Dirty connector pins at controller
or contactor coil.
3. Bad connector crimps or
faulty wiring.
4. Driver overcurrent, as set by the
Driver x Overcurrent parameter.
5. See Programmer » Controller
Setup » Outputs » Driver x »
Driver x Overcurrent.
Set: Electromagnetic brake
driver (pin 4) is either open
or shorted.
This fault can be set only when
EM Brake Type >0.
Clear: Restore/repair any
external wiring or device-coil
to their correct state, then
Reset Controller.
ShutdownEMBrake
ShutdownThrottle
FullBrake
Dual Drive
This Motor:
Same
Other Motor:
Same
3-3
0x33
Pump Driver Fault
Pump_Driver_fault
0x2420
Fault Type(s):
1 = Driver current exceeded
hardware limits.
2 = Driver current exceeded
congured over-current limits.
3 = Driver commanded PWM
active, using diagnostic
pulses. Voltage measured
high, should be low. Typically
caused by driver failure, or
driver pin short to high.
4 = Driver commanded PWM
active, using diagnostic pulses.
Voltage measured low, should
be high. Either open circuit, or
driver pin short to ground.
5 = Driver commanded PWM is
0, and voltage measured low
(should be high). Either open
circuit, or driver pin short to
ground.
7 = Driver undercurrent -
Monitored current is below
undercurrent threshold.
Fault types 1-2 are always checked.
Fault types 3-5 are only checked if
driver checks are enabled.
1. Open or short on driver load.
2. Dirty connector pins at controller
or contactor coil.
3. Bad connector crimps or faulty
wiring.
4. Driver overcurrent, as set by the
Driver x Overcurrent parameter.
5. See Programmer » Controller
Setup » Outputs » Driver x »
Driver x Overcurrent.
Set: The assigned pump-
contactor driver is either open
or shorted, or exceeded its
overcurrent setting.
Note: This fault is typically
associated with non-pump
controllers operating a DC
pump via a Driver, yet can
apply to controllers with the
pump (e.g., the F2-T/F2-C) is
also so congured.
Clear: Correct the open or short,
and then Reset Controller.
Shutdownpump
Dual Drive
This Motor:
Shutdownpump
Other Motor:
Shutdownpump
Table 24 Fault Code Troubleshooting Chart, cont’d

Kohler Curtis AC F2-T Specifications

General

Brand	Kohler
Model	Curtis AC F2-T
Category	Controller
Language	English